Ahmad, H., and R. A. Wulandari. “Environmental Factors and Lung Function Impairment Among Household Industrial Workers of Stone-Carving Crafts at Maritengngae Subdistrict, Sidrap Regency 2016”. KnE Life Sciences, Vol. 4, no. 1, Jan. 2018, pp. 103-11, doi:10.18502/kls.v4i1.1371.